What exactly is dirty... (air filter-wise)

NikTheGeek · 19th February 2009, 09:14

Doing some work, trying to improve the MPG. Did I mention it was only 28mpg?

Anyway, egr valve currently being cleaned. PCV valve off despite not having a stupid star-type tool. But the air filter is concerning me.

Is this dirty or not? Hopefully not too dirty since I don't have a spare one handy! Attached...

tnx

Nick

steve107 · 19th February 2009, 09:47

iwould say its getting ready .if you can get one i would change it while it is out

mossey · 19th February 2009, 11:48

They also come in white! I would change it for sure.

steakpie · 19th February 2009, 11:51

I have just serviced my ZTT CDti. Before the service I was getting about 400 miles to a tank and that was on a long motorway run from plymouth to glasgow. So heres what I did during the service:

Oil change and flush
Used Millers part synthetic
fitted a cold air induction kit
got ride of the old airintake
New air filter
Dismantled the manifold and cleaned it {loads of soot in side}
replaced the EGR Vv with the bypass (got of ebay for £31)
stripped and cleaned the PCV with white spirit
Oiled and greased any thing that needed
Replaced the earthing strap on the Fuel cooler at rear of vehicle(it had corroded away)
then checked all the usual tyres brakes etc

I also bought some millers fuel treatment just for good measure.
It has made a BIG differance to the fuel MPG. I drove from plymouth to Hamilton last night at a steady 75-80mph and covered 477 miles and I still have just under a quarter of a tank left, with the range computer telling me I have 90miles (ish) to run.

One thing i did not replace was the fuel filter as it was done 5000 miles ago.

The bypass on the egr Vv makes the car respond like a petrol car and when you put the boot down the smoke out the back is significantly reduced ( even on setting 10 on Rons box!!)

Cleaning out the plastic manifold was a very dirty job but worth doing. I was amazing how much c~#p came out of it.

Its like driving a new car again.

19th February 2009, 11:51	#4
steakpie Regular poster MG ZTT CDTi+ auto Join Date: May 2007 Location: Hamilton Posts: 85 Thanks: 0 Thanked 0 Times in 0 Posts	I have just serviced my ZTT CDti. Before the service I was getting about 400 miles to a tank and that was on a long motorway run from plymouth to glasgow. So heres what I did during the service: Oil change and flush Used Millers part synthetic fitted a cold air induction kit got ride of the old airintake New air filter Dismantled the manifold and cleaned it {loads of soot in side} replaced the EGR Vv with the bypass (got of ebay for £31) stripped and cleaned the PCV with white spirit Oiled and greased any thing that needed Replaced the earthing strap on the Fuel cooler at rear of vehicle(it had corroded away) then checked all the usual tyres brakes etc I also bought some millers fuel treatment just for good measure. It has made a BIG differance to the fuel MPG. I drove from plymouth to Hamilton last night at a steady 75-80mph and covered 477 miles and I still have just under a quarter of a tank left, with the range computer telling me I have 90miles (ish) to run. One thing i did not replace was the fuel filter as it was done 5000 miles ago. The bypass on the egr Vv makes the car respond like a petrol car and when you put the boot down the smoke out the back is significantly reduced ( even on setting 10 on Rons box!!) Cleaning out the plastic manifold was a very dirty job but worth doing. I was amazing how much c~#p came out of it. Its like driving a new car again.

19th February 2009, 09:47	#2
steve107 Loves to post 75 cdt tourer diesel Join Date: Jun 2008 Location: swinton rotherham Posts: 492 Thanks: 0 Thanked 0 Times in 0 Posts	iwould say its getting ready .if you can get one i would change it while it is out

19th February 2009, 11:48	#3
mossey Regular poster Rover 75 tourer cdt Join Date: Nov 2008 Location: sheffield Posts: 89 Thanks: 0 Thanked 0 Times in 0 Posts	They also come in white! I would change it for sure.